Income Taxes - Income Tax Expense (Benefit) (Detail) (USD $)	3 Months Ended	12 Months Ended
Oct. 31, 2013	Oct. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Current
Federal			$ 0	$ 0
State			20,000	20,000
Current Total			20,000	20,000
Deferred
Federal			0	0
State			0	0
Deferred Income Tax Expense (Benefit)			0	0
Income tax expense	7,000	7,000	20,000	20,000
Cortelco Systems Holding Corp [Member]
Current
Federal			155,000	270,000
State			30,000	50,000
Current Total			185,000	320,000
Deferred
Federal			17,000	(1,000)
State			3,000	0
Deferred Income Tax Expense (Benefit)	(153,000)	0	20,000	(1,000)
Income tax expense	$ (35,000)	$ 114,000	$ 205,000	$ 319,000

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.